Finding the Fourth Proportional to 78,303.16, 108,058.62 and 42,493.18

Step by Step Solution

1. Step 1: Write the proportion equation
   78,303.16 : 108,058.62 = 42,493.18 : x
2. Step 2: Convert to fraction form
   78,303.16/108,058.62 = 42,493.18/x
3. Step 3: Cross multiply
   78,303.16x = 108,058.62 × 42,493.18
4. Step 4: Simplify right side
   78,303.16x = 4,591,754,390.21
5. Step 5: Solve for x
   x = 4,591,754,390.21/78,303.16
6. Step 6: Final answer
   x = 58,640.73